102201220122100 has 36 divisors (see below), whose sum is σ = 241938161091648. Its totient is φ = 37164080044000.

The previous prime is 102201220122059. The next prime is 102201220122101. The reversal of 102201220122100 is 1221022102201.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102201220122101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46455098956 + ... + 46455101155.

It is an arithmetic number, because the mean of its divisors is an integer number (6720504474768).

Almost surely, 2^{102201220122100} is an apocalyptic number.

102201220122100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102201220122100 is an abundant number, since it is smaller than the sum of its proper divisors (139736940969548).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102201220122100 is a wasteful number, since it uses less digits than its factorization.

102201220122100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92910200136 (or 92910200129 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102201220122100 its reverse (1221022102201), we get a palindrome (103422242224301).

It can be divided in two parts, 1022012 and 20122100, that added together give a palindrome (21144112).

The spelling of 102201220122100 in words is "one hundred two trillion, two hundred one billion, two hundred twenty million, one hundred twenty-two thousand, one hundred".